Energy-saving and environment-friendly filter paper drying device

Abstract

The present disclosure relates to the technical field of filter paper processing, and one embodiment of the present disclosure provides an energy-saving and environment-friendly filter paper drying device, which comprises a drying box, a supporting column is arranged at the lower end of the drying box, a pressing and drying assembly is arranged in the interior of the drying box, and a filtering and exhausting assembly is arranged on the side wall of the drying box; the pressing and drying assembly comprises a wind box, the output end of a fan is inserted into the wind box, the output end of the fan is provided with a autorotation sleeve, the side wall of the autorotation sleeve is provided with a blowing piece, the interior of an extension sleeve is provided with a lifting sleeve, the interior of the lifting sleeve is provided with a heating mesh, and the inner side wall of the lifting sleeve is provided with a pressing frame. Through the above technical scheme, the technical problem that the conventional equipment in the prior art is not provided with a filtering device, directly discharges and pollutes the environment, the open drying structure causes serious heat loss, the surface temperature of the equipment is high, there is a risk of scalding for the operator, and the filter paper directly contacts the high-temperature component and may cause spontaneous combustion is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of filter paper processing technology, and more specifically, to an energy-saving and environmentally friendly filter paper drying device. Background Technology

[0002] As a key consumable in laboratory, medical, and industrial filtration fields, the drying quality of filter paper directly affects filtration performance (such as pore size uniformity, strength, and residual impurities). In the filter paper production process, drying is the core step for removing moisture and solidifying the fiber structure, and it must meet the following requirements: High efficiency: Ensure rapid drying of filter paper to improve production efficiency; Uniformity: Avoid localized overheating or incomplete drying that could lead to filter paper deformation or embrittlement; Energy saving and environmental protection: Reduce energy consumption and exhaust emissions, meeting green production requirements; Safety: Avoid fire or pollution problems caused by high temperatures, dust, etc.

[0003] Traditional hot air drying equipment often uses fixed nozzles or a single heating source, resulting in limited contact area between the hot air and the filter paper. This necessitates longer drying times, leading to increased energy consumption (e.g., electric heating can consume 3-5kW). The heat utilization rate is less than 50%, with some equipment lacking a hot air circulation system. A large amount of heat energy is directly emitted with the exhaust gas. When the conveyor belt runs at high speed, the filter paper is prone to wrinkles or displacement due to uneven airflow, resulting in local moisture residue (moisture content deviation can reach ±10%). Traditional pressing devices are mostly rigid flat structures, which can easily cause fiber damage or uneven thickness when directly pressing the filter paper, affecting filtration accuracy. The exhaust gas generated during the drying process contains pollutants such as paper fibers and volatile organic compounds (VOCs). Traditional equipment does not have a filtration device, and direct emission can easily pollute the environment. The open drying structure leads to serious heat loss, and the surface temperature of the equipment is high (up to 80-100℃), posing a risk of burns to operators. Direct contact between the filter paper and high-temperature components may cause spontaneous combustion. Therefore, an energy-saving and environmentally friendly filter paper drying device is being developed. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide an energy-saving and environmentally friendly filter paper drying device, which solves the technical problems of traditional equipment in the prior art that does not have a filtration device, directly emits pollutants that easily pollute the environment, has an open drying structure that leads to serious heat loss, high surface temperature of the equipment and poses a risk of burns to operators, and filter paper that may spontaneously combust in direct contact with high-temperature components.

[0005] According to one aspect, at least one embodiment of this disclosure provides an energy-saving and environmentally friendly filter paper drying apparatus, comprising: A drying oven, wherein a supporting column is provided at the lower end of the drying oven; The press-drying assembly is disposed inside the drying chamber; A filter exhaust assembly is disposed on the side wall of the drying chamber; The pressing and drying assembly includes an air box, which is disposed on the upper end face of the drying chamber and is connected to the drying chamber. An extension sleeve is disposed on the lower end face of the air box, and a fan is disposed on the upper end face of the air box. The output end of the fan is inserted into the air box, and a self-rotating sleeve is disposed on the output end of the fan. A blowing blade is disposed on the side wall of the self-rotating sleeve. A lifting sleeve is disposed inside the extension sleeve, and a heating mesh is disposed inside the lifting sleeve. A pressing frame is disposed on the inner side wall of the lifting sleeve.

[0006] As a further technical solution, the side wall of the lifting sleeve is provided with a mounting plate, and the inner top of the air box is provided with a driving cylinder, the extension and retraction end of the driving cylinder being fixedly connected to the mounting plate.

[0007] As a further technical solution, the filtration and exhaust assembly includes an exhaust port, which is opened on the side wall of the drying oven. The exhaust port consists of a plurality of vertical through holes arranged in an orderly manner. The side wall of the drying oven is provided with a plug-in frame, and a plug-in plate is installed inside the plug-in frame. A filter cover is provided on the plug-in plate, and a filter screen is provided inside the filter cover.

[0008] As a further technical solution, the upper end of the air box is provided with an air inlet mesh, the diameter of which is larger than the diameter of the filter screen.

[0009] As a further technical solution, conveyor belt insertion holes are provided at opposite ends of the air box, and heat preservation curtains are installed inside the conveyor belt insertion holes.

[0010] As a further technical solution, the bottom of the support column is provided with anti-slip feet, and the inner side wall of the support column is provided with a conveyor belt-adhering anti-slip pad. There are 4 support columns, and each of the 4 support columns is provided with an anti-slip foot and a conveyor belt-adhering anti-slip pad.

[0011] As a further technical solution, the pressing frame has an arc-shaped structure, and there are several pressing frames, which are evenly distributed on the inner side wall of the lifting sleeve.

[0012] As a further technical solution, the mounting plate is provided with mounting holes, and the extension and retraction end of the drive cylinder is provided with a limiting plate, which is attached to the upper and lower end faces of the mounting plate.

[0013] The beneficial effects of the embodiments disclosed herein are as follows: 1. In this disclosure, the fan drives the self-rotating sleeve to drive the blowing blades to rotate at high speed, generating a spiral hot airflow. Combined with the light pressure of the arc-shaped pressing frame on the filter paper when the lifting sleeve descends, the hot air flows closely to the surface of the filter paper in a 360° annular airflow, improving the heat exchange efficiency.

[0014] 2. In this disclosure, the air inlet mesh of the air box and the air outlet of the drying box form a "top in, bottom out" hot air circulation path, which, together with the sealing of the conveyor belt insertion holes by the heat insulation curtain, reduces heat loss. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is a cross-sectional view of the drying oven disclosed herein; Figure 3 This is a side view of the lifting sleeve disclosed herein; Figure 4 This is an isometric view of the filter housing of this disclosure; In the diagram: 1. Drying box; 2. Support column; 3. Pressing drying assembly; 3-1. Air box; 3-2. Extension sleeve; 3-3. Fan; 3-4. Rotating sleeve; 3-5. Air blower; 3-6. Lifting sleeve; 3-7. Heating mesh; 3-8. Pressing frame; 3-9. Mounting plate; 3-10. Drive cylinder; 4. Filter exhaust assembly; 4-1. Exhaust hole; 4-2. Insert frame; 4-3. Insert plate; 4-4. Filter cover; 4-5. Filter mesh; 5. Air inlet mesh; 6. Conveyor belt insertion hole; 7. Insulation curtain; 8. Anti-slip feet; 9. Conveyor belt anti-slip pad; 10. Mounting hole; 11. Limiting plate. Detailed Implementation

[0017] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0018] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0020] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-4 As shown, it illustrates an energy-saving and environmentally friendly filter paper drying device of this disclosure, comprising: Drying box 1, with a supporting column 2 at the lower end of the drying box 1; Press drying component 3 is installed inside drying chamber 1; The filter exhaust assembly 4 is installed on the side wall of the drying chamber 1; The pressing drying assembly 3 includes a blower box 3-1, which is located on the upper surface of the drying chamber 1 and is connected to the drying chamber 1. An extension sleeve 3-2 is provided on the lower surface of the blower box 3-1, and a fan 3-3 is provided on the upper surface of the blower box 3-1. The output end of the fan 3-3 is inserted into the blower box 3-1, and a self-rotating sleeve 3-4 is provided on the output end of the fan 3-3. A blowing blade 3-5 is provided on the side wall of the self-rotating sleeve 3-4. A lifting sleeve 3-6 is provided inside the extension sleeve 3-2, and a heating mesh 3-7 is provided inside the lifting sleeve 3-6. A pressing frame 3-8 is provided on the inner side wall of the lifting sleeve 3-6.

[0024] The filter exhaust assembly 4 includes an exhaust port 4-1, which is located on the side wall of the drying chamber 1. The exhaust port 4-1 consists of multiple vertical through holes arranged in an orderly manner. The side wall of the drying chamber 1 is provided with a plug-in bracket 4-2. A plug-in plate 4-3 is installed inside the plug-in bracket 4-2. A filter cover 4-4 is installed on the plug-in plate 4-3. A filter screen 4-5 is installed inside the filter cover 4-4.

[0025] In some examples, the air box 3-1 is fixed to the upper surface of the drying box 1 to ensure that the air box 3-1 is connected to the inside of the drying box 1. The fan 3-3 is installed on the upper surface of the air box 3-1, and the output end is inserted into the air box 3-1 and the self-rotating sleeve 3-4 is fixed. Ensure that the blowing blade 3-5 on the self-rotating sleeve 3-4 has a safe gap with the inner wall of the air box 3-1 to avoid collision during high-speed rotation. The lifting sleeve 3-6 is installed in the extension sleeve 3-2. The heating mesh 3-7 is fixed inside the lifting sleeve 3-6 (e.g., by bolts or clips). The pressing frame 3-8 (arc-shaped structure, evenly distributed on the inner wall of the lifting sleeve 3-6) is fixed to the inner wall of the lifting sleeve 3-6.

[0026] Multiple vertically arranged exhaust holes 4-1 are opened on the side wall of the drying oven 1. The plug-in bracket 4-2 is fixed to the outside of the exhaust hole 4-1. The insert piece 4-3 is inserted so that the filter cover 4-4 is embedded in the plug-in bracket 4-2, ensuring that the filter cover 4-4 is aligned with the exhaust hole 4-1. The insert piece 4-3 can be fixed by buckles or bolts for easy disassembly and cleaning later.

[0027] like Figures 1-4 As shown in the figure, this embodiment proposes that the side wall of the lifting sleeve 3-6 is provided with a mounting plate 3-9, and the inner top of the air box 3-1 is provided with a driving cylinder 3-10, and the telescopic end of the driving cylinder 3-10 is fixedly connected to the mounting plate 3-9.

[0028] In some examples, the telescopic end of the drive cylinder 3-10 (installed at the top inside the bellows 3-1) is connected to the mounting plate 3-9 on the side wall of the lifting sleeve 3-6.

[0029] For example, such as Figure 2As shown, the upper end of the air box 3-1 is provided with an air inlet mesh 5, and the mesh diameter of the air inlet mesh 5 is larger than the mesh diameter of the filter screen 4-5.

[0030] In some examples, check the air inlet mesh 5 at the top of the air box 3-1 to ensure that its mesh diameter is larger than that of the filter screen 4-5, so as to avoid large particles of impurities clogging the filter screen 4-5 and ensure smooth air intake.

[0031] For example, such as Figure 2 As shown, conveyor belt insertion holes 6 are provided at opposite ends of the bellows 3-1, and heat preservation curtains 7 are installed inside the conveyor belt insertion holes 6.

[0032] In some examples, the conveyor belt for transporting filter paper is installed through the conveyor belt insertion holes 6 of the air boxes 3-1 on both sides of the drying chamber 1. Ensure that the edge of the conveyor belt is in contact with the anti-slip pad 9 of the conveyor belt on the inner side wall of the column to reduce offset and friction during transport. The heat insulation curtain 7 at the insertion hole needs to cover both sides of the conveyor belt to prevent heat loss inside the drying chamber 1.

[0033] For example, such as Figure 2 As shown, the bottom of the support column 2 is provided with anti-slip feet 8, and the inner side wall of the support column 2 is provided with a conveyor belt-adhering anti-slip pad 9. There are 4 support columns 2, and each of the 4 support columns 2 is provided with anti-slip feet 8 and conveyor belt-adhering anti-slip pads 9. The pressing frame 3-8 has an arc-shaped structure, and there are several pressing frames 3-8. Multiple pressing frames 3-8 are evenly distributed on the inner side wall of the lifting sleeve 3-6.

[0034] In some examples, the drying box 1 is placed on a level ground by four bottom support columns 2, ensuring that the anti-slip feet 8 at the bottom of the columns are in close contact with the ground to prevent the equipment from shaking. If the ground is uneven, it can be leveled by adjusting the height of the anti-slip feet 8 or by adding anti-slip pads.

[0035] For example, such as Figure 2 As shown, mounting holes 10 are provided on the mounting plate 3-9, and a limiting piece 11 is provided on the telescopic end of the drive cylinder 3-10. The limiting piece 11 is attached to the upper and lower end faces of the mounting plate 3-9.

[0036] In some examples, the limiting piece 11 of the drive cylinder 3-10 fits against the upper and lower end faces of the mounting piece 3-9 and is fixed through the mounting hole 10 to ensure that the lifting sleeve 3-6 rises and falls smoothly.

[0037] During use, lay the filter paper to be dried flat on the conveyor belt, ensuring that the edges of the filter paper do not exceed the width of the conveyor belt and avoid contact with the inner wall of the drying chamber 1. Start the conveyor belt to allow the filter paper to slowly enter the drying chamber 1 (the recommended conveyor speed is 0.5-1 m / min). Start the blower 3-3 to drive the rotating sleeve 3-4 to rotate. The blower 3-5 draws outside air into the air box 3-1 through the air inlet mesh 5. After being heated by the heating mesh 3-7, the air is blown onto the surface of the filter paper through the air outlets of the extension sleeve 3-2 and the lifting sleeve 3-6. The drive cylinder 3-10 pushes the lifting sleeve. As the pressure plate 3-6 descends, the pressing frame 3-8 gently presses the filter paper (the arc-shaped structure fits the filter paper to avoid damage). At the same time, the heated airflow forms a uniform air field between the pressing frame 3-8 and the filter paper, accelerating moisture evaporation. The hot and humid air generated during the drying process enters the filter cover 4-4 through the exhaust hole 4-1 on the side wall of the drying chamber 1. After being filtered by the filter screen 4-5 (capturing impurities such as paper fibers in the air), it is discharged to avoid environmental pollution. The large mesh design of the air inlet mesh 5 can pre-filter larger impurities, reduce the load on the filter screen 4-5, and extend its service life.

[0038] The blower 3-3 drives the rotating sleeve 3-4 (speed 1500-2000r / min), which in turn drives the blower blades 3-5 to generate a rotating downward hot airflow with a wind speed of 8-10m / s. Combined with the heating mesh 3-7 (temperature adjustable 50-120℃), this forms a composite heating field of "rotating hot airflow + vertical heat radiation," increasing the heat flux density on the filter paper surface to 1.8 times that of traditional equipment. The conveyor belt has perforated holes 6 and an insulation curtain 7 (thermal conductivity ≤0.03W / (m²)). The structure of the sealed drying chamber 1 (K) reduces the heat loss rate from 30% in traditional equipment to 12%; the hot air circulation path design (air inlet → air box 3-1 → drying chamber → exhaust vent 4-1) increases the thermal energy utilization rate to 82% and reduces energy consumption to 2.5kW. h / kg water.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. An energy-saving and environmentally friendly filter paper drying device, characterized in that, include: Drying box (1), the lower end of which is provided with a supporting column (2); Press-drying assembly (3), which is disposed inside the drying chamber (1); A filter exhaust assembly (4) is disposed on the side wall of the drying chamber (1); The pressing and drying assembly (3) includes a blower box (3-1), which is located on the upper surface of the drying box (1) and is connected to the drying box (1). An extension sleeve (3-2) is provided on the lower surface of the blower box (3-1), and a fan (3-3) is provided on the upper surface of the blower box (3-1). The output end of the fan (3-3) is inserted into the blower box (3-1), and a self-rotating sleeve (3-4) is provided on the output end of the fan (3-3). A blowing blade (3-5) is provided on the side wall of the self-rotating sleeve (3-4). A lifting sleeve (3-6) is provided inside the extension sleeve (3-2), and a heating mesh (3-7) is provided inside the lifting sleeve (3-6). A pressing frame (3-8) is provided on the inner side wall of the lifting sleeve (3-6).

2. The energy-saving and environmentally friendly filter paper drying device according to claim 1, characterized in that, The side wall of the lifting sleeve (3-6) is provided with a mounting plate (3-9), and the inner top of the air box (3-1) is provided with a driving cylinder (3-10). The telescopic end of the driving cylinder (3-10) is fixedly connected to the mounting plate (3-9).

3. The energy-saving and environmentally friendly filter paper drying device according to claim 1, characterized in that, The filter exhaust assembly (4) includes an exhaust hole (4-1), which is located on the side wall of the drying chamber (1). The exhaust hole (4-1) consists of a plurality of vertical through holes arranged in an orderly manner. The side wall of the drying chamber (1) is provided with a plug-in bracket (4-2). An insert plate (4-3) is installed inside the plug-in bracket (4-2). A filter cover (4-4) is provided on the insert plate (4-3). A filter mesh (4-5) is provided inside the filter cover (4-4).

4. The energy-saving and environmentally friendly filter paper drying device according to claim 3, characterized in that, The upper end of the air box (3-1) is provided with an air inlet mesh (5), and the mesh diameter of the air inlet mesh (5) is larger than the mesh diameter of the filter screen (4-5).

5. The energy-saving and environmentally friendly filter paper drying device according to claim 1, characterized in that, The bellows (3-1) has conveyor belt insertion holes (6) at both ends, and a heat preservation curtain (7) is installed inside the conveyor belt insertion holes (6).

6. The energy-saving and environmentally friendly filter paper drying device according to claim 1, characterized in that, The bottom of the support column (2) is provided with anti-slip feet (8), and the inner side wall of the support column (2) is provided with a conveyor belt-adhering anti-slip pad (9). There are 4 support columns (2), and each of the 4 support columns (2) is provided with an anti-slip foot (8) and a conveyor belt-adhering anti-slip pad (9).

7. The energy-saving and environmentally friendly filter paper drying device according to claim 1, characterized in that, The pressing frame (3-8) has an arc-shaped structure, and there are several pressing frames (3-8), which are evenly distributed on the inner side wall of the lifting sleeve (3-6).

8. The energy-saving and environmentally friendly filter paper drying device according to claim 2, characterized in that, The mounting plate (3-9) is provided with mounting holes (10), and the extension end of the drive cylinder (3-10) is provided with a limiting piece (11), which is attached to the upper and lower end faces of the mounting plate (3-9).

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